Crusher



March 1, 1932. J. A. FLINT 7.

CRUSHER Filed Nov 2, 1926 2 Sheets-Sheet 1 T fi v INVENTOR. JAMESAFLINT A TTORNEY.

March 1, 1932. J. A. FLINT 1,347,083

' CRUSHER I Filed Nov 2, 1926 2 Sheets-Sheet 2 Tia-.5.

. IN I/ENTOR JAMES A. FLINT BY a nrrormsr Patented ,Mar. 1, 1932 UNITED STATESFPATENT) QFFICE JAMES A. FLINT, or DENVE COLORADO, AssIeNo To THE 'TRAYLOR VIBRATOR COMPANY, or DENVER, COLORADO, A CORPORATION or COLORADO Application. filed November particularly to crushers of the kind in which the material to be crushed is introduced between jaws, one or both of which is or are movable andcalised to approach toward and recede from each other to crush ,or reduce the material introduced therebetween.

The object of the invention is to provide 1c an improved and simplified form of crusher in which the'movement of the jaw or jaws.

, is effected at a very high rate ofspeed as compared with existing Crushers, i; order to obother material and a tain a more effective crushing of the rock or v greatly increased output from the crusher. The invention essentially comprises an electro-magnetic ,motor or operating means and a cooperating resilient means associated 26 with the movable jaw or jaws of the crusher,

and which are designed to act together in synchronism to cause vibration or movement of the'j aw or jaws, and to maintain the same in such vibration or movement, at a predetermined high frequency and with a desired or controlled amplitude of vibration.

, The invention is illustrated in the accompanying drawings as applied to a m e or less usual form of crusher having a fixe' jaw and a movable jaw, althoughit will, of course,

be understood that theinvention may as readily .be applied to crushers in the j aws ,are movable.

In the drawings: Figure 1 is a vertical section of-the crusher taken on the line11 of Fig. 2;

Fig. 2 is a plan View, of theicrusher show I in Fig. 1;

Fig. 3 is a sectional plan View taken on the line 3-3 of Fig. 1; and

Fig. 4 is a detail view of a modifiedform of mounting for the movable jaw.

The particular form of crusher illustrated -comprises the usual heavy crusher frame (1) adapted to be secured in position in the usual manner and having the central downwardly tapering opening (2) into which the material to be'crushed is introduced. One side of this frame constitutes .the fixedjaw (3) of the crusher and is provided within'the opening which both of Q cRusHRR 2, 1926. Serial No. 145,790.

The jaw maybe mounted for pivotal move-- ment upon a shaft (7) extending through an enlargement or eye (8) at the upper end of thejaw and into suitable bearing in the main frame (1), as indicated in Fig. 4. It is, however, preferred to mount the movable j aw in the manner indicated in Figs. 1 and 2. In this form of mounting a plate (9) of sheet metal is provided extending substantially the full width of the jaw and seated apertures along opposite edges thereof within grooves or recesses 10) formed in the enlarged up-- per portion (11) of the jaw and in the adjacent portion'of the main frame. The plate is held within the means of screws (12) threaded into the upper parts of the aw and frame respectively. This plate provides the necessary flexibility of mounting of the upper end'of the jaw to grooves or recesses (10) by provide for the desired movement of thej aw to eflect the crushing operation. The movement of the movable j aw. (5) is effected by an electro-magnetic operating means acting in conjunction with a resilient means, both of such means being associated with or connected tothe movable jaw to inipart the desired movements thereto.

The electro-magnetic means, in the form thereof shown, comprises a fixed laminated core (13) of substantially C-shape, which is mounted in a core holder (14) of non-magnetic material, which is in turn suitably secured to the main frame (1), being, for example, bolted to lugs (15) projecting within an opening (16) provided in the frame to.

accommodate the electro-magnetic means. Energizing coils 17 are provided upon the outwardly projecting arms or poles of the core Associated with the core (13) is a vibratable' or reciprocable laminated armature (18) mounted in a holder (19) of soy non-magnetic material, which is in turn bolted or otherwise secured to the laterally i extending portions (20) of a yoke member (21). The inner ends of the arms of this yoke member are suitably secured, as by means of screws (22),to the movable jaw (5).

The resilient means which coacts with the electro-magnetic means in effecting and maintaining the vibratory movement of the jaw (5') comprises, in the particular form thereof- I extending laterally from the sides of the main frame, and the ends of the bar are. securely fixed by means of screws (25) threaded into said bosses and bearing at their inner ends against the bar element. At its central portion the flat bar element passes through a boss (26) projecting rearwardly from the aw member (5), the boss and bar element being firmly clamped together by means of screws (27) threaded the bar element.

The coils (17). are connected with a suitable source of alternating or pulsating current, whereby the armature (18) is intermittently attracted toward the poles of the core (13), this attractive movement of the armature being transmitted to the movable jaw (5) through the yoke (21) which carries the armature and is connected to the jaw. The resilient means or fiat bar element (23) normally tends-to hold the armature and aw in the neutral position indicated in the drawings, but when the armature is attracted toward the core (13), the bar element is defiected from, the neutral position and thus a restoring force is built up within the bar element which, when the attraction of the armature toward the poles of the core ceases between the alternations or pulsations of current, tends to restore the parts to the neutral positions thereof. Due to the inertia of the jaw and parts connected thereto, the jaw and parts will be carried beyond the neutral position, thereby causing a deflection of the flat.

bar element in the opposite direction, agam building up a restoring force in the bar ele-' "ment tending to brin'gthe parts back again to the neutral position. The restoring force in this direction will be assisted by the. succeeding attractive force of the core (13), and as the parts reach this attractive force and the inertia of the parts will again cause deflection of the bar element (23) in the first direction. This operation will be repeated as long as current is supplied to the coils (17) of the core (13) with the result that thejaw 'brated or moved relatively to the fixed jaw (3) at-a high frequency.

It will be understood that the attractive in the boss and bearing against the neutral position again (5) will be vi "forces are intermittently applied to the armature (18) in such a manner as to cause the same and the jaw to vibrate or move at a pre determined frequency, and that the resilient means constituted by the flat bar element (23) is so constructed .or designed as to the ma; terial, length and cross-section thereof, as to also maintain the jaw in vibration at this predetermined frequency during the operation of the crusher. That is to say, the bar element is so designed that when deflected from the neutral position in the manner described, restoring forces are built up therein of the necessary magnitude to return the jaw and parts associated therewith to the neutral'position in the same time as taken to move the jaw and parts from said position. Thus the electro-magnetic means and the flat bar elewith the jaw and electro-magnetic means if so desired.

It will also be understood that the invention may be readily applied to a crusher construction in which both of the crusher jaws are movable. For example, each of the crusher jaws may be mounted and operated in the manner described with reference to the movable jaw (5). Alternatively eachof the movable jaws may have a resilient means associated therewith, and a common electro-magnetic means may be provided for the two jaws, the core, for example, being mounted on one of the jaws while the armature is carried by the otherj aw.

It is preferred to design or arrange the vibrator elements so that the natural vibration thereof will be slightly out of synchronism with the frequency of the electro-magnetic impulses, butsuch that the vibratory movement of said elements will be brought into synchronism with the current frequency by the attractive forces of the electro-magnet. This enables the operation of the machine to be more accurately controlled.

)Vhat I claim and desire to secure by Let- .ters Patent is l r 1. A crusher, comprising in" combination, a frame, crusher jaws, including a movable jaw, a vibratory element mounted on said frame with a portion thereof free to vibrate and with the vibratory portion thereof rigidly connected to said movable jaw, said element being constructed and arranged to be inherently capable in itself of malntaining the vibratory weight, of said jaw in vibra tory movement at a predetermined frequency,

and electro-magnetic means mounted on said frame in eIec-tro-magnetic connection with said vibratory element and operative to maintain said element in vibratory movement at said predetermined frequency:

2. A crusher,,comprising in combination,

a frame, crusher jaws, including a movable jaw, a vibratory element mounted on said vframe with a portion thereof free to vibrate J and with the vibratory portion thereof rigid- 1y connected to said movable jaw and supporting and maintaining the same normally in a predetermined position with respect to a the other jaw, said element being constructed and arranged to be inherently capable in'it- 5 self of maintaining thevibratory weight of said jaw in vibratory movement at a predetermined frequency to opposite sides of said predetermined position and electro-mag'netic means mounted on said frame in electro-ma-gnetic connection with said vibratory element and operative to maintain said element invibratory movement at said predetermined frequency. 3. A crusher, comprising in combination,

crusher jaws, including a movable, jaw, a

vibratory element anchored at the ends there-' of in the crusher frame and capable of vibrating at its middle portion, rigidly connected at said middle portion to said jaw, and designed so as to be'capable of maintaining the vibratory weight ofsaid-jaw in vibratory movement at a predetermined frequency, and

electro-magnetic means associatedwith said vibratory element and operative to maintain said element in vibratory movement at said predetermined frequency.

4. A crusher, comprising in combination,

a frame, crusher jaws, including a movable jaw, a vibratory element mounted on said 4% frame with a portion thereof free to vibrate in the direction of movement of said movable jaw and with said vibratory portion thereof rigidly connected to 'said movable crusher jaw, said element being constructed and ar- 6 ranged so as to be capable in itself of maintaining the vibratory weight of said jaw in vibratory movement at a predetermined frequency, and electro-magnetic means mounted on said frame in electro-magnetic connect- .tion with said vibratory element and operative to maintain saidelement in vibratory Tmovement at said predetermined frequency, said electro-magnetic means being controllable to determine the amplitude of vias bration of said jaw.

5. A crusher, comprising in combination,

crusher jaws, including a movable jaw, a vibratory element inthe form of a flat bar element anchored at the ends thereof in the crusher frame and capable of vibrating at its middle portion, rigidly connected at said middle portion to said jaw, and'designed so as to be capable of maintaining the vibratory.

weight of said jaw in vibratory movement at a predetermined frequency, and electro-magnetic means associated with said vibratory element and operative to maintain said element in vibratory movement at said predetermined frequency. v V

.6. A crusher, comprising in combination, crusher jaws, includmg a movable aw, a

vibratory element in the form of a plurality,

of juxtaposed flat bars anchored at the ends thereof in the crusher frame and capable of vibrating at the middle portion thereof, rigidly connected at said middle-portion to said jaw, and designed so as to be capable of maintaining the vibratory weight of said jaw in vibratory movement at a predeterminedfrequency, and electro-magnetic means.

attractive "forces to said element at a. predetermined frequency, said element being arranged to be deflected to oppositesides of said neutral position by the attractive forces of element and arranged to apply intermittent 3 said electro-magnetic means and the inertia of said jaw respectively, and being designed with respect to the vibratory weight of said jaw when so deflected to develop restoring forces approximatel proportional to the deflection thereof, ten ing to bring said j aw' to rest and to restore it to neutral position in the same time as taken to move it from said posit1on.

8. A crusher, comprising in combination,

crusher jaws, including a movable jaw, a vibratory elementfixedly mounted at the ends thereof in the crusherframe and capable of vibrating at its middle portion and at said middle portion rigidly connected with and supporting said jaw in a normally neutral position, and electro-inagnetic means associated with saidvibratory element, said element being arranged to be. deflected to opposite sides of said neutral position by the attractive forces of said electro-magnetic means and the inertia of said jaw respectively,-

and being designed with respect to thevibratory weight of said jaw when so deflected to develop restoring forces approximately proportional to the deflection thereof. tending to bring said jaw to restv and to restore it to neutral position in the same time as taken to move it from said position.

9. A crusher, comprismg 1n COIflblHfitlOH,

crusher jaws,'including a movable jaw, a,

Vibratory element mounted for vibratory movement in the crusher frame and rigidly connected with said jaw, said element being designed with respect to the vibratory weight movement at a certain frequency, and electro- .of said jaw to maintainsaid jaw in vibratory magnetic means connected with said vibratory element and designed to produce electromagnetic impulses at a predetermined slightly different frequency and operative to maintain said elementin vibratory movement at said predetermined frequency.

10. A crusher, comprising in combination, crusher jaws, including amovable jaw, a vibratory element supported by the crusher frame and rigidly connected with said jaw and designed with respect to the vibratory weight of said jaw so as to be capable under repeated deflection of developing restoringforces such as to maintain said jaw in vibration at a predetermined frequency, and electro-magnetic means associated with said vibratory element and operative to cause repeated deflectionthereof at said predetermined frequency.

11. A crusher, comprising in combination, crusher jaws, including a movable jaw, a vibratory element supported by the crusher frame and rigidly connected with said jaw and designed with respect to the vibratory weight of said jaw so as to be capable under repeated deflection of developing restoring forces such as to maintain said jaw in vibration at a predetermined frequency, and electro-magnetic .means associated with .said vibratory element and operative to apply repeated attractive forces thereto to cause repeated deflection thereof at said predetermin'ed frequency, said means being 'so arranged that said attractive forces are applied ,to said element in the direction of the crushing movement of said jaw.

12. A crusher,-comprising in combination, aframe, jaw, means for supporting said movable jaw to permit vibratory movement thereof, comprising a plate member extending widthwise of the-jaw connectedat its edges to said jaw and frame respectively and ca- I magnetic connection with said movable jaw,

pable of a flexing movement, electro-magnet1c means mounted on sand frame n electroe and resilient means mounted on said'frame and connected with said jaw, said electro-' magnetic means and said resilient means acting jointly and in synchronism with each other to cause said jaw to vibrate and to maintain it in vibration at a predetermined frequency.

13. A crusher, comprising in combination, crusher jaws, includinga swingingly mountorusher jaws, including a movable electro-magnetic means associated with said' 14. A crusher, comprising in combination,

crusher aws, including a movable jaw, a vibratory element normally lying in a plane substantially parallel to the plane of the movable crusher .jaw and mounted for vi brat ory movement in a plane transverse to said parallel planes, said element being rigidly connected to said movable crusher jaw and designed so as to be capable of maintaining the vibratory weight of said jaw in vibratory movement at a predetermined frequency, and electro-magnetic means associated with said vibratory element and operative to maintain said element in vibratory movement at said predetermined frequency.

15. A crusher, comprising in combination, a frame, crusher jaws, including a movable jaw, a vibratory element mounted on said frame with a portion thereof free to Vibrate in the direction of movement of said mov-- and with said. vibratable portion connected to said movable able jaw, thereof rigidly crusher jaw, said element being vpredesigned with respect to its material length and crossse-ctional dimensions, so as to be inherently capable in itself of maintaing the vibratory weight of said jaw in Vibratory movement at a predetermined frequency, and electro-magnetic means mounted on said frame inelectromagnetio connection with said vibratory element and adapted when energized to produce repeated actuating forces effective to maintain said element in vibratory movement at said predetermined frequency.

In testimony whereof I aflix my signature.

JAMES A. FLINT.

ed and movable jaw, a vibratory element connected to said movable crusher jaw and arranged to vibrate in a plane parallel with the axis of swinging movement of said jaw, and designed was to be capable of maintaining the vibratory weight of said jaw in vibratory movement at a predetermined frequency, and 

